SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Property, Plant and Equipment, Net (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 27, 2024	Sep. 29, 2023	Sep. 30, 2022
Property, Plant and Equipment
Gross property, plant and equipment	$ 405.6	$ 383.1
Accumulated depreciation and amortization	(252.2)	(239.5)
Total property, plant and equipment, net	153.4	143.6
Depreciation	$ 21.2	19.5	$ 19.0
Land Improvements
Property, Plant and Equipment
Property, plant and equipment, useful lives (in years)	15 years
Building
Property, Plant and Equipment
Property, plant and equipment, useful lives (in years)	30 years
Land
Property, Plant and Equipment
Gross property, plant and equipment	$ 8.6	8.3
Buildings and leasehold improvements
Property, Plant and Equipment
Gross property, plant and equipment	165.5	159.1
Machinery and equipment
Property, Plant and Equipment
Gross property, plant and equipment	206.5	194.9
Construction in progress
Property, Plant and Equipment
Gross property, plant and equipment	$ 25.0	$ 20.8
Minimum | Machinery and equipment
Property, Plant and Equipment
Property, plant and equipment, useful lives (in years)	3 years
Maximum | Machinery and equipment
Property, Plant and Equipment
Property, plant and equipment, useful lives (in years)	7 years